• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

New Lines, very little fuel?

  • Thread starter Thread starter jb1dsl
  • Start date Start date Nov 14, 2005

jb1dsl

Member
May 24, 2004
566
0
17
Marianna, Fl.
Nov 14, 2005
#1
  • Nov 14, 2005
  • #1
I just bent new lines from thh tank to the pump. I have a clear inline fuel filter up close to the carb and it seems like I should be getting alot more fuel. I thought before it would shoot a stream into the filter. I can rev the motor up and the fuel level in the filter does not change (half full). I know this is not under a load, I think that would maje a difference, right? I checked the lines for a pinched spot but I do not see one. I had a small leak at a union, would that make a differnce?. The pump was doing great 2 weeks ago when I parked it to change the fuel tank and lines. I'm lost, I guess I will try and make up a new piece of line if I can't figure it out.
 

thehueypilot

Active Member
Feb 25, 2004
1,084
0
37
Medina,Tennessee
Nov 14, 2005
#2
  • Nov 14, 2005
  • #2
You need an in-line pressure gage to make sure the pump is delivering enough pressure. If it is between 4-7 psi (about normal) do a volume check by running the fuel line from the output of the pump to a bucket to check the pump output volume. (1 gpm is about normal)
 
T

ttoney

Member
Sep 12, 2005
195
0
16
Denver
Nov 14, 2005
#3
  • Nov 14, 2005
  • #3
How is your tank/float setup? I had thatg same problem and found that5 my tank was filled with some brown sugar and oatmeal like rust crap. Nasty. New tank & float made for nice flow. The engine was popping like CRAZY also. I thought it was running super rich.
 

jb1dsl

Member
May 24, 2004
566
0
17
Marianna, Fl.
Nov 14, 2005
#4
  • Nov 14, 2005
  • #4
new tank and lines.I just took it down the road and no stumbles or hesitation, so maybe it is ok. My eyes maybe just be deceiving me. i need to get a fuel pressure guage. is there one that goes inside the car (mechanical, electric, isolator) Does autometer make a phantom for inside the car?
 
T

ttoney

Member
Sep 12, 2005
195
0
16
Denver
Nov 14, 2005
#5
  • Nov 14, 2005
  • #5
Fuel level gauge, electric, 2-1/16" diameter, p/n ATM-5715.
 

jb1dsl

Member
May 24, 2004
566
0
17
Marianna, Fl.
Nov 14, 2005
#6
  • Nov 14, 2005
  • #6
i need a pressure guage
 

Edbert

Founding Member
Jul 13, 2002
3,548
32
109
Austin TX
Nov 14, 2005
#7
  • Nov 14, 2005
  • #7
jb1dsl said:
i need a pressure guage
Click to expand...


There's a few of them here:
http://store.summitracing.com/default.asp?target=egnsearch.asp&N=400178+302458&autoview=sku

Just don't get a 30 psi gauge for a mech pump and a carb, even the 15s are too high.
 

Attachments

  • hly-26-500.webp
    16.8 KB · Views: 108

iskwezm

10 Year Member
May 24, 2005
4,159
20
79
Rowland Heights,California
Nov 14, 2005
#8
  • Nov 14, 2005
  • #8
i have the ultra lite version of this
 
You must log in or register to reply here.

Similar threads

I
1994 Cobra - Fuel Pressure Drops Revving at Idle
  • IconicSilverGT500
  • Apr 11, 2026
  • 1994 - 1995 Specific Tech
Replies
16
Views
428
1994 - 1995 Specific Tech Apr 24, 2026
Mcmahst
L
1997 V6 Starting issue
  • leanzik04
  • Mar 20, 2026
  • SN95 V6 Mustang Tech
Replies
3
Views
243
SN95 V6 Mustang Tech Mar 20, 2026
Noobz347
D
Is this a fuel filter?
  • Dutch74
  • Oct 2, 2025
  • 1974 - 1978 Mustang II Talk & Tech
Replies
7
Views
307
1974 - 1978 Mustang II Talk & Tech Oct 21, 2025
welder4956
Zero fuel pressure @ Shrader, but over 100 PSI at filter
  • Stang337
  • Jul 5, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
394
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 10, 2025
JD1964
New fuel pump relay
  • Scrapla347
  • Nov 3, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
906
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 8, 2025
Scrapla347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?